Gerrymandering
Allen v. Milligan
Whether Alabama’s congressional districts violate Section 2 of the Voting Rights Act because they discriminate against Black voters. We succeeded in winning a new map for 2024 elections which, for the first time, has two congressional district that provide Black voters a fair opportunity to elect candidates of their choosing despite multiple attempts by Alabama to stop us at the Supreme Court. Despite this win, Alabama is still defending its discriminatory map, and a trial was held in February 2025 to determine the map for the rest of the decade.
In May 2025, a federal court ruled that Alabama's 2023 congressional map both violates Section 2 of the Voting Rights Act and was enacted by the Alabama Legislature with racially discriminatory intent.
Status: Ongoing
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U.S. Supreme Court
Apr 2026
Gerrymandering
Louisiana v. Callais (Callais v. Landry)
Whether the congressional map Louisiana adopted to cure a Voting Rights Act violation in Robinson v. Ardoin is itself unlawful as a gerrymander.
Mississippi
Dec 2025
Gerrymandering
White v. Mississippi State Board of Elections
District lines used to elect Mississippi’s Supreme Court have gone unchanged for more than 35 years. We’re suing because the current lines crack the Mississippi Delta and dilute the voting strength of Black Mississippians in state Supreme Court elections, in violation of the Voting Rights Act.
U.S. Supreme Court
Oct 2025
Gerrymandering
State Board of Election Commissioners v. Mississippi State Conference of the NAACP
Mississippi has a growing Black population, which is already the largest Black population percentage of any state in the country. Yet. Black Mississippians continue to be significantly under-represented in the state legislature, as Mississippi’s latest districting maps fail to reflect the reality of the state’s changing demographics. During the 2022 redistricting process, the Mississippi legislature refused to create any new districts where Black voters have a chance to elect their preferred representative. The current district lines therefore dilute the voting power of Black Mississippians and continue to deprive them of political representation that is responsive to their needs and concerns, including severe disparities in education and healthcare.
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35 Gerrymandering Cases
Ohio Supreme Court
Nov 2023
Gerrymandering
League of Women Voters of Ohio v. Ohio Redistricting Commission (State House and Senate Challenge)
The American Civil Liberties Union, ACLU of Ohio, and Covington & Burling LLP filed a lawsuit on Sept. 23, 2021, in Ohio Supreme Court challenging Ohio’s newly drawn maps for state House and Senate districts that give extreme and unfair advantage to the Republican Party.
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Ohio Supreme Court
Nov 2023
Gerrymandering
League of Women Voters of Ohio v. Ohio Redistricting Commission (State House and Senate Challenge)
The American Civil Liberties Union, ACLU of Ohio, and Covington & Burling LLP filed a lawsuit on Sept. 23, 2021, in Ohio Supreme Court challenging Ohio’s newly drawn maps for state House and Senate districts that give extreme and unfair advantage to the Republican Party.
Kentucky Supreme Court
Nov 2023
Gerrymandering
Commonwealth of Kentucky v. Graham (Amicus)
State legislatures are responsible for creating state legislative and U.S. congressional districts. In 2019, the U.S. Supreme Court held in Rucho v. Common Cause that federal courts have no authority to review claims that states have sorted voters along partisan lines to favor one political party over others. However, challenges to partisan gerrymandering continue in many state courts, and this case involves one such constitutional challenge in Kentucky.
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Kentucky Supreme Court
Nov 2023
Gerrymandering
Commonwealth of Kentucky v. Graham (Amicus)
State legislatures are responsible for creating state legislative and U.S. congressional districts. In 2019, the U.S. Supreme Court held in Rucho v. Common Cause that federal courts have no authority to review claims that states have sorted voters along partisan lines to favor one political party over others. However, challenges to partisan gerrymandering continue in many state courts, and this case involves one such constitutional challenge in Kentucky.
Ohio Supreme Court
Sep 2023
Gerrymandering
League of Women Voters of Ohio v. DeWine (Congressional Challenge)
On November 30, 2021, the ACLU and co-counsel filed a lawsuit in the Ohio Supreme Court on behalf of the League of Women Voters of Ohio (LWVO), A. Philip Randolph Institute of Ohio, and several individuals. The suit challenged Ohio’s newly-drawn congressional map.
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Ohio Supreme Court
Sep 2023
Gerrymandering
League of Women Voters of Ohio v. DeWine (Congressional Challenge)
On November 30, 2021, the ACLU and co-counsel filed a lawsuit in the Ohio Supreme Court on behalf of the League of Women Voters of Ohio (LWVO), A. Philip Randolph Institute of Ohio, and several individuals. The suit challenged Ohio’s newly-drawn congressional map.
U.S. Supreme Court
Feb 2023
Gerrymandering
Huffman v. Neiman
This case asks whether the Elections Clause of the U.S. Constitution bars the Ohio state court from enforcing redistricting requirements in the Ohio constitution that prohibit partisan gerrymandering.
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U.S. Supreme Court
Feb 2023
Gerrymandering
Huffman v. Neiman
This case asks whether the Elections Clause of the U.S. Constitution bars the Ohio state court from enforcing redistricting requirements in the Ohio constitution that prohibit partisan gerrymandering.
U.S. Supreme Court
Nov 2022
Gerrymandering
Moore v. Harper (Amicus)
Can state legislatures draw gerrymandered districts and make other rules for federal elections without any check from state courts applying the rules of their own state constitutions?
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U.S. Supreme Court
Nov 2022
Gerrymandering
Moore v. Harper (Amicus)
Can state legislatures draw gerrymandered districts and make other rules for federal elections without any check from state courts applying the rules of their own state constitutions?